Initial Commit

cmd/autharr/LICENSE

@@ -0,0 +1,20 @@
+Copyright (c) 2024 Markus Pesch
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

cmd/autharr/Makefile

@@ -0,0 +1,37 @@
+VERSION?=$(shell git describe --abbrev=0)+hash.$(shell git rev-parse --short HEAD)
+
+# CONTAINER_RUNTIME
+# The CONTAINER_RUNTIME variable will be used to specified the path to a
+# container runtime. This is needed to start and run a container image.
+CONTAINER_RUNTIME?=$(shell which podman)
+
+# BIN
+# ==============================================================================
+autharr:
+	CGO_ENABLED=0 \
+		go build -ldflags "-X 'main.version=${VERSION}'" -o ${@} main.go
+
+# CLEAN
+# ==============================================================================
+PHONY+=clean
+clean:
+	rm --force --recursive autharr
+
+# INSTALL
+# ==============================================================================
+PHONY+=install
+install: autharr
+	# install --directory ${DESTDIR}/etc/bash_completion.d
+	# ./autharr completion bash > ${DESTDIR}/etc/bash_completion.d/autharr
+
+	install --directory ${DESTDIR}${PREFIX}/bin
+	install --mode 0755 autharr ${DESTDIR}${PREFIX}/bin/autharr
+
+	install --directory ${DESTDIR}${PREFIX}/share/licenses/autharr
+	install --mode 0644 LICENSE ${DESTDIR}${PREFIX}/share/licenses/autharr/LICENSE
+
+# PHONY
+# ==============================================================================
+# Declare the contents of the PHONY variable as phony.  We keep that information
+# in a variable so we can use it in if_changed.
+.PHONY: ${PHONY}

cmd/autharr/main.go

@@ -0,0 +1,123 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	"time"
+
+	"git.cryptic.systems/volker.raschek/tarr/pkg/config"
+	"git.cryptic.systems/volker.raschek/tarr/pkg/domain"
+	"github.com/sirupsen/logrus"
+	"github.com/spf13/cobra"
+)
+
+var version string
+
+func main() {
+	rootCmd := &cobra.Command{
+		Args: cobra.RangeArgs(1, 2),
+		Long: `autharr reads the XML or YAML configuration file and prints the API token on stdout`,
+		Example: `autharr /etc/bazarr/config.yaml
+autharr /etc/lidarr/config.xml`,
+		RunE:    runE,
+		Version: version,
+		Use:     "autharr",
+	}
+	rootCmd.Flags().Bool("watch", false, "Listens for changes to the configuration and writes the token continuously to the output")
+
+	rootCmd.Execute()
+}
+
+func runE(cmd *cobra.Command, args []string) error {
+	watchCfg, err := cmd.Flags().GetBool("watch")
+	if err != nil {
+		return err
+	}
+
+	switch watchCfg {
+	case true:
+		return runWatch(cmd, args)
+	case false:
+		return runSingle(cmd, args)
+	}
+
+	return nil
+}
+
+func runSingle(_ *cobra.Command, args []string) error {
+	cfg, err := config.ReadConfig(args[0])
+	if err != nil {
+		return err
+	}
+
+	var dest string
+	if len(args) == 2 {
+		dest = args[1]
+	}
+
+	return writeConfig(cfg, dest)
+}
+
+func runWatch(cmd *cobra.Command, args []string) error {
+	// Initial output
+	err := runSingle(cmd, args)
+	if err != nil {
+		return err
+	}
+
+	// Watcher output
+	configChannel, errorChannel := config.WatchConfig(cmd.Context(), args[0])
+
+	var dest string
+	if len(args) == 2 {
+		dest = args[1]
+	}
+
+	waitFor := time.Millisecond * 100
+	timer := time.NewTimer(waitFor)
+	<-timer.C
+
+	var cachedConfig *domain.Config = nil
+
+	for {
+		select {
+		case <-cmd.Context().Done():
+			return nil
+		case err := <-errorChannel:
+			logrus.WithError(err).Errorln("Received from config watcher")
+		case <-timer.C:
+			writeConfig(cachedConfig, dest)
+		case config := <-configChannel:
+			cachedConfig = config
+			timer.Reset(waitFor)
+		}
+	}
+}
+
+func writeConfig(config *domain.Config, dest string) error {
+	switch {
+	case len(dest) <= 0:
+		_, err := fmt.Fprintf(os.Stdout, "%s", config.API.Token)
+		if err != nil {
+			return err
+		}
+	case len(dest) > 0:
+		dirname := filepath.Dir(dest)
+
+		err := os.MkdirAll(dirname, 0755)
+		if err != nil {
+			return err
+		}
+
+		f, err := os.Create(dest)
+		if err != nil {
+			return err
+		}
+		defer func() { _ = f.Close() }()
+
+		f.WriteString(config.API.Token)
+	}
+
+	return nil
+}